Table 2.

Total number of hantavirus positive sera in each study group

Study group	Total number of positive samples	Seroprevalance (%)	95% Confidence Intervals
Group 1 (random blood donors)	10	3·3	1·6–6·0
Group 2 (Pet rat owners)	27	34·1	23·9–45·7
Group 3 (occupational exposure to pet rats)	4	2·4	0·6–5·9
Group 4 (occupational exposure to wild rats – Farmers)	2	1·7	0·2–5·9
Group 4 (Occupational exposure to wild rats – Waste water workers)	2	2·9	0·3–9·9
Group 4 (Occupational exposure to wild rats – Pest control workers)	3	2·8	0·6–8·0
Group 4 (total)	7	2·4	1·0–4·8